3dSkiMaps on Google Earth Plugin

To navigate, use the navigation control on the right,
or try combinations with your arrow keys and the shift key and control key,
or with your mouse buttons and the shift key and control key.

3dSkiMaps for GEPlugin uses a php class developed for
Google Earth’s SuperOverlay method for viewing large overlays
without cloggin up the Intertubes. NetworkLinks and GroundOverlays
deliver the artwork as sets of tiles with
level of detail depending on altitude.